固体光气法合成对称脲的方法研究  

The Research on the Synthetic Methods of Symmetrical Urea by Triphosgene

作　　者：韦庆益[1] 方利[1] 江洪[1] 

机构地区：[1]华中农业大学理学院化学系,湖北武汉430070

出　　处：《化学与生物工程》2008年第6期27-28,32,共3页Chemistry & Bioengineering

基　　金：华中农业大学博士基金资助项目(52204-05047)

摘　　要：对固体光气合成对称脲的方法(酰氯法和异氰酸酯法)进行了研究。酰氯法,即固体光气先与芳香胺反应生成酰氯,然后再与等量的芳香胺反应生成对称脲;异氰酸酯法是先将固体光气与芳香胺反应生成异氰酸酯,然后再与芳香胺反应生成对称脲。比较了两种方法的优缺点。Two methods for the synthesis of symmetrical urea with triphosgene have been compared. One way is treating triphosgene with phenylamine to gain chloromide firstly,then adding another equal phenylamine to obtain symmetrical urea. Another way is treating triphosgene with phenylamine to produce isocyanate, then adding another equal phenylamine to obtain symmetrical urea. The advantages and disadvantages of the two methods have been compared.

关 键 词：对称脲 芳基异氰酸酯 固体光气 合成 

分 类 号：TQ225.3[化学工程—有机化工] TQ254.14